Although it's no secret that many of Shanghai's parks were foreigner cemeteries during the city’s concession era (and some still have a few old tombstones scattered about), Yangpu Park, where this photo was taken, wasn't one of those grave sites.

It wasn’t uncommon for foreign grave stones to be relocated during the Cultural Revolution, so it’s possible that this tombstone came from the former Pahsienjao Cemetery (now Huaihai Park), which was in Shanghai's French Concession located on today's Huaihai Zhong Lu.

The reasoning: The grave stones there were relocated between October 1957 and February 1958; construction on Yangpu Park started in early 1957 and finished in January 1958.